... well, this individual appears not to know the definition of stable, but do go on.
> Cryptocurrency returns are a zero-sum game i.e. if 1 person gets a $10 profit, another person has to lose $10.
First, equities are positive-sum games, which makes them, on the whole, in the fullness of time, a strictly better investment. It is not true that someone has to lose for someone else to win in the equity markets. Shareholder returns are derived from the business itself.
Second, proof-of-work currencies are negative sum, since the miners have to expend unfathomable quantities of electricity and generate mountains e-waste. This costs money. This money is obtained by selling the block reward, which puts negative price pressure on the cryptos. So not only are the only source of returns other gamblers, there's also a hole in the bucket. In gambling parlance, that's the rake in a game of poker.